Protein Synthesis and Mutations

Front

What are the building blocks of DNA?

Back

Nucleotides are the units that are repeatedly joined together to form a strand of DNA.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one nucleotide in a DNA sequence is replaced by another nucleotide.

Front

How can a single nucleotide change affect protein production?

Back

A change in one DNA nucleotide can alter the amino acid sequence coded for by the gene, potentially resulting in an incorrect protein.

Front

What is the complementary RNA sequence for the DNA strand GTAGTCA?

Back

The complementary RNA sequence is CAUCAGU.

Front

Which nucleotide is NOT found in mRNA?

Back

Thymine (T) is not present in mRNA; it is replaced by Uracil (U).

Front

What are the three main types of mutations?

Back

The three main types of mutations are substitution, deletion, and insertion.

Front

What is transcription in protein synthesis?

Back

Transcription is the process of copying a segment of DNA into mRNA.

Front

What role do ribosomes play in protein synthesis?

Back

Ribosomes are the cellular structures where protein synthesis occurs, translating mRNA into amino acid sequences.

Front

What is the function of mRNA?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome for protein synthesis.

Front

What is an insertion mutation?

Back

An insertion mutation occurs when one or more nucleotides are added to a DNA sequence.